Auto bib



FIG. 1 is a front elevational view of an auto bib in accordance with my new design the rear elevational view being a mirror image thereof;

FIG. 2 is a right side elevational view of the auto bib of FIG. 1, the left side being a mirror image of the right side;

FIG. 3 is a bottom view of the auto bib as shown in FIG. 1 and;

FIG. 4 is a top view of the auto bib of FIG. 1. 

The ornamental design for an auto bib, as shown and described. 